Iâll try and explain this the best I can but please forgive me if it gets a little confusing. I had my 2003 S4 serviced 7 months ago and the service info reset. After a number of miles the computer finally reported back the next service interval which read in the DIS as: Service in: 23712 miles or 32 days This was obviously wrong since the service was done approx 100 miles and 2 days earlier. The 32 days finally expired and I got a warning for service. I then took the car in for some other work later on down the line (7mths after original service) and also had the service interval checked etc. And it was reset again. I know get messages stating: Service in 27432 miles or 72 days This also seems wrong as the service interval is 18k anyway so should never report this mile interval. Has anyone got any thoughts on this or seen this behaviour before?